Mustang Dyno

The one with the twin rolers, we put the car on set up all the specs: HP @ 50MPH, Weight, Displacement, Cylendars, set up the RPM pickup on CYL 2 Wire from coil, strapper her down and did a warmup run.

The result:

106.5HP @ 5250
123.0 LB-FT @ 4250

WTF

what did we do wrong

weight was 3375 LBS
HP @ 50 Was 10.5

The one thing i did notice was the acceleration was slower on the dyno then on the road almost like i was driving with my e-brake on.

So was the resitance too high?
could the dyno be out?
could the operator be DEFICIENT?

There is nothing wrong with my car at all it drives like a champ there is no CEL's, no leaks, nothing is binding up, there is not a problem with it.

I beat my friend in his Cavalier with a CAI, Motor mounts and various suspension parts, and his dyno came out at about 134 hp and 140 ft-lbs so obviously the numbers are wrong.

all pulls were run in 4th. The 1/4 mile run which was 17.37 @ 80.7 (check my signiture for the specs) Seems slow, am i wrong? It's not that i want huge power numbers i just wanted to see what it had at the wheels

WHAT CAN I DO TO FIX IT.


Sorry for the big POST

Eddie

I definetly dont think the dyno is inaccurate with an 80 mph trap speed in the 1/4 mile. Something is holding you back.

I believe the non svt 2.5s put down 130~ hp stock if im not mistaken, so perhaps the dyno was off.

That dyno is off.....even the slower stock Duratecs I have seen on the dyno have put down over 120hp.

Shot i have an Atx and with just an SVT tb, Intake and exhaust i dynoed 141hp and 140tq.

I cant wait to go this summer since i have done some more work to her, I think i might be able to hit 150hp and 145tq. guess we will have to wait and see

Check your secondaries!

can you post your dyno graph?

Originally posted by mmarfan:

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Check your secondaries!

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Very good idea!!!